Finding the Third Proportional to 71.56 and 154.38

Step by Step Solution

1. Step 1: Write the proportion equation
   71.56 : 154.38 = 154.38 : x
2. Step 2: Convert to fraction form
   71.56/154.38 = 154.38/x
3. Step 3: Cross multiply
   71.56x = 154.38 × 154.38
4. Step 4: Simplify right side
   71.56x = 23,831.64
5. Step 5: Solve for x
   x = 23,831.64/71.56
6. Step 6: Final answer
   x = 333.02